电信科学 ›› 2014, Vol. 30 ›› Issue (8): 33-41.doi: 10.3969/j.issn.1000-0801.2014.08.006

• 专题:SDN 与NFV • 上一篇    下一篇

基于SDN的云数据中心

饶少阳1,陈运清1,冯明2   

  1. 1 中国电信股份有限公司北京研究院 北京100035
    2 中国电信集团公司 北京100032
  • 出版日期:2014-08-15 发布日期:2014-08-15

Cloud Data Center Based on SDN

Shaoyang Rao1,Yunqing Chen1,Ming Feng2   

  1. 1 Beijing Research Institute of China Telecom Co., Ltd., Beijing 100035, China
    2 China Telecom Corporation, Beijing 100032, China)
  • Online:2014-08-15 Published:2014-08-15

摘要:

移动互联网、云计算等新型业务的高速增长,一方面促使传统的IDC向云计算数据中心转变,另一方面越来越多的应用和数据集中到云端,使得云数据中心的规模急剧增长,传统网络架构和技术已经难以适应云数据中心的发展,如多租户网络隔离、地址复用、VPC(虚拟专有云)、东西向流量控制、QoS和安全控制、自动化网络配置以及大二层网络需求等。SDN作为近期兴起的一种新型网络技术,被认为是解决云数据中心诸多网络问题的重要手段。首先分析云计算引入对数据中心网络带来的主要挑战和问题,然后提出解决这些问题的思路;在比较几种业界主流SDN技术方案后,提出了基于overlay SDN的云数据中心网络解决方案,并深入分析了其实现原理;最后探讨了云数据中心网络的发展趋势。

关键词: 云计算, 云数据中心, 软件定义网络, 网络虚拟化, 多租户网络

Abstract:

Along with rapid growth of mobile internet, cloud computing and other new services, on the one hand, the traditional IDC is being transformed to cloud computing data center, on the other hand, more and more applications and data are coming to be carried on the cloud, which makes the scale of cloud data centers substantially increase, while the traditional network architecture and the technologies has been difficult to adapt to the development of the cloud data center. As a recent rising new network technology, SDN is considered to be an important mean to solve many network problems of cloud data center. Major challenges and problems of data center network were analyzed after introducing cloud computing and then proposals to solve them were given. After comparing several classic SDN technologies, the solution of cloud data center network based on overlay SDN was proposed, and its implementation principle was deeply analyzed. Finally, the development trend of the cloud data center network was discussed.

Key words: software defined networking, network virtualization, multi-tenant network, cloud computing, cloud DC

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